GeForce GTS 450 vs Radeon RX 560

Intro

Compare those specs to the Radeon RX 560, which has a clock frequency of 1175 MHz and a GDDR5 memory speed of 1750 MHz. It also makes use of a 128-bit memory bus, and makes use of a 14 nm design. It features 1024 SPUs, 64 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 560		80 Watts
GeForce GTS 450		106 Watts
	Difference: 26 Watts (33%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 560 will be 99% quicker than the GeForce GTS 450 overall, because of its higher bandwidth. (explain)

Radeon RX 560		114688 MB/sec
GeForce GTS 450		57728 MB/sec
	Difference: 56960 (99%)

Texel Rate

The Radeon RX 560 will be a lot (more or less 200%) faster with regards to texture filtering than the GeForce GTS 450. (explain)

Radeon RX 560		75200 Mtexels/sec
GeForce GTS 450		25056 Mtexels/sec
	Difference: 50144 (200%)

Pixel Rate

The Radeon RX 560 should be much (approximately 50%) faster with regards to AA than the GeForce GTS 450, and also will be capable of handling higher resolutions without slowing down too much. (explain)

Radeon RX 560		18800 Mpixels/sec
GeForce GTS 450		12528 Mpixels/sec
	Difference: 6272 (50%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the largest amount of data (counted in megabytes per second) that can be transferred over the external memory interface in one second. It's calculated by multiplying the interface width by the speed of its memory. If it uses DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.